Finding the Third Proportional to 584.72 and 881.30

Step by Step Solution

1. Step 1: Write the proportion equation
   584.72 : 881.30 = 881.30 : x
2. Step 2: Convert to fraction form
   584.72/881.30 = 881.30/x
3. Step 3: Cross multiply
   584.72x = 881.30 × 881.30
4. Step 4: Simplify right side
   584.72x = 776,684.18
5. Step 5: Solve for x
   x = 776,684.18/584.72
6. Step 6: Final answer
   x = 1,328.30